HK MP5K/SP5K Small Parts

HK MP5K/SP5K Small Parts

Ensure smooth operation with high-quality MP5K small parts and SP5K replacement pins from HKP. Our HK Parts collection includes essential springs, pins, and other small components to keep your firearm running at its best. Trust HKP for reliable replacement parts.

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  • H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring

    H&K MP5/SP5/MP5K/SP5K 9mm Extractor Spring

    H&K Heckler & Koch

    $9.95
    H&K MP5, SP5, MP5K, & SP5K 9mm Extractor Spring This extractor spring will fit all of the 9mm HK variants including clones. This part is German HK factory manufactured and made to the tightest of specifications and tolerances and will provide a...
    HKP-00055
    $9.95
    Qty in Cart: 0
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    $9.95
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  • FMP MP5, MP5K Extractor Spring FMP MP5, MP5K Extractor Spring

    FMP MP5, MP5K Extractor Spring

    FMP

    $4.95
    FMP MP5, MP5K Extractor Spring New old stock HK contract FMP extractor spring will fit all of the 9mm HK variants including clones. This part was made using HK prints on HK contract tooling that the German HK factory manufactured for the Portuguese...
    HKP-18201
    $4.95
    Qty in Cart: 0
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    $4.95
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  • H&K Rifle Extractor Spring For All HK's H&K Rifle Extractor Spring For All HK's

    H&K Rifle Extractor Spring For All HK's

    H&K Heckler & Koch

    $6.74
    HK German 308/7.62 & 556/.223 Rifle Extractor Spring New factory HK German part. The extractor spring is the number 1 replaced item on HK firearms. Many HK gunsmiths recommend upgrading MP5/94 series HK's with this longer/stronger silver spring vs...
    HKP-00188
    $6.74
    Qty in Cart: 0
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    $6.74
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  • H&K Roller Retainer Spring - Action 3 H&K Roller Retainer Spring - Action 3

    H&K Roller Retainer Spring - Action 3

    H&K Heckler & Koch

    $6.74
    H&K Roller Retainer Spring - Action 3 This part is the second-generation roller holder. Each retainer fits all "action 3" 9mm MP5 & MP5K bolt heads & MP5 40/10 bolt heads. The roller retainer spring is a common repair and replacement item and...
    HKP-00068
    $6.74
    Qty in Cart: 0
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    $6.74
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  • HKP 1st Gen Roller Retainer Plate To Spring Upgrade

    HKP 1st Gen Roller Retainer Plate To Spring Upgrade

    HKP HK Parts

    $9.95
    HKP 1st Gen Roller Retainer Plate To Spring Upgrade This action 3 roller retainer spring for all 1st Generation bolt heads replaces the oval-shaped roller retainer plate. HK made a wire spring as an upgrade for later production bolt heads to improve the...
    HKP-02119
    $9.95
    Qty in Cart: 0
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    $9.95
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  • H&K 9mm Ejector Lever - 3rd Gen H&K 9mm Ejector Lever - 3rd Gen

    H&K 9mm Ejector Lever - 3rd Gen

    H&K Heckler & Koch

    $69.95
    H&K 9mm Ejector Lever - Latest Generation  The German latest generation ejector has all of the upgrades and improvements made since the MP5 was introduced over 50 years ago. Fits all of the HK 9mm variants. Stamped, formed, heat treated,...
    HKP-00058
    $69.95
    Qty in Cart: 0
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    $69.95
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  • H&K MP5, MP5K & SP5K 9mm Extractor H&K MP5, MP5K & SP5K 9mm Extractor

    H&K MP5, MP5K & SP5K 9mm Extractor

    H&K Heckler & Koch

    $59.95
    New HK German HK 9mm Extractor - Latest Generation This is the latest and greatest HK MP5 (newest F style version) German extractor. Each unit works with all HK MP5, HK94, MP5K, SP89, SP5K, or other 9mm clones. A great part to have as a spare or to...
    HKP-00057
    $59.95
    Qty in Cart: 0
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    $59.95
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  • FMP Rifle Extractor Spring For All HK's - HK Contract FMP FMP Rifle Extractor Spring For All HK's - HK Contract FMP

    FMP Rifle Extractor Spring For All HK's - HK Contract FMP

    FMP

    $3.49
    HK Contract FMP (Portuguese) 308/7.62, 5.56/.223 Rifle Extractor Spring New factory contract part. The extractor spring is the number 1 replaced item on HK firearms. Many HK gunsmiths recommend upgrading MP5/94 series HK's with this longer/stronger...
    HKP-16248
    $3.49
    Qty in Cart: 0
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    $3.49
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  • US Ejector Lever Axle - 90 Series US Ejector Lever Axle - 90 Series

    US Ejector Lever Axle - 90 Series

    HKP HK Parts

    $6.95
    US Ejector Lever Axle This US ejector lever axle pin holds the ejector lever in place in the trigger pack. Made out to HK spec for the best US replacement part on the market. The best replacement for your worn out or broken axle. A must have replacement...
    HKP-20630
    $6.95
    Qty in Cart: 0
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    $6.95
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  • On Sale
    H&K MP5/K Bolt Group Backup Kit - Action 3

    H&K MP5/K Bolt Group Backup Kit - Action 3

    H&K Heckler & Koch

    Now: $8.95
    Was: $22.95
    H&K MP5 Bolt Group Backup Kit - Action 3 This kit includes the highest wear and replace items on the MP5 action 3 bolt group, as well as the easy to lose pin. Includes: Factory German MP5 9mm Extractor Spring Factory German Action 3 Roller Retainer...
    HKP-16993
    Now: $8.95
    Was: $22.95
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    Now: $8.95
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  • H&K MP5, HK94 Cocking Tube Support Handle Pin

    H&K MP5, HK94 Cocking Tube Support Handle Pin

    H&K Heckler & Koch

    $1.95
    HK German MP5, 94 Cocking Tube Support Handle Pin This spring pin holds the cocking handle in place on the cocking tube support. This is also the same part for the front sight roll pin for the triple frame (front sight tower). Compatible With: HK MP5...
    HKP-00656
    $1.95
    Qty in Cart: 0
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    $1.95
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  • H&K 90 Series Pinned Hammer H&K 90 Series Pinned Hammer

    H&K 90 Series Pinned Hammer

    H&K Heckler & Koch

    $29.95
    Hammer, Full Auto HK 90 Series Trigger Packs - German HK - Used German HK Hammer- used, surplus in VG-EXC shape and in perfect working order. With the proper hole on the hammer to pin the strut in place. This hammer is the hammer that is most commonly...
    HKP-18305
    $29.95
    Qty in Cart: 0
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    $29.95
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  • On Sale
    DTAC Mag Paddle Bushing With Pin For Semi Builds DTAC Mag Paddle Bushing With Pin For Semi Builds

    DTAC Mag Paddle Bushing With Pin For Semi Builds

    DTAC Dakota Tactical

    Now: $4.95
    Was: $9.89
    DTAC Mag Paddle Bushing With Pin For Semi-Builds This part is made 100% in the US from 17-4 stainless steel. Latest production with patent pending anti-binding enhancement upgrade. Accurate tolerance for easy movement with minimal play. It has an...
    HKP-02194
    Now: $4.95
    Was: $9.89
    Qty in Cart: 0
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    Now: $4.95
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  • On Sale
    H&K Push Pin Set - MP5, G3/91, 33/53/93

    H&K Push Pin Set - MP5, G3/91, 33/53/93

    H&K Heckler & Koch

    Now: $13.95
    Was: $15.49
    HK Set Of Two (One Large And One Small) Push Pins -Used These are great replacements or spare parts to keep on hand.  Compatible With: HK91 & G3 53, 33, and 93 MP5, SP5, SP89 PTR and GSG-5 family of guns. Please Note: The GSG5 will take...
    HKP-00673
    Now: $13.95
    Was: $15.49
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    Now: $13.95
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  • HKP Rear Sight Oval Washer

    HKP Rear Sight Oval Washer

    HKP HK Parts

    $2.95
    HKP Rear Sight Oval Washer HK German oval washer for the rear sight diopter style assemblies. This is the needed washer used in conjunction with the locking washer. Fits and works with all diopter-style rear sights.
    HKP-00870
    $2.95
    Qty in Cart: 0
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    $2.95
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  • H&K Front Sight Tower & Cocking Handle Pin H&K Front Sight Tower & Cocking Handle Pin

    H&K Front Sight Tower & Cocking Handle Pin

    H&K Heckler & Koch

    $1.95
    H&K Front Sight Tower & Cocking Handle Pin Front sight tower roll pin for all HK 90 series front sights as well with some other applications. Compatible With: MP5 & SP5 MP5K & SP5K HK G3 & 91 HK 33, 53, 93
    HKP-00096
    $1.95
    Qty in Cart: 0
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    $1.95
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  • HKP Cocking Tube End Cap-Aluminum HKP Cocking Tube End Cap-Aluminum

    HKP Cocking Tube End Cap-Aluminum

    HKP HK Parts

    $12.95
    H&K Cocking Tube End Cap-Aluminum - US Made Made from weight-saving aircraft-grade aluminum alloy.  Compatible With: All 90 series HK firearms and clones that use a triple frame/sight tower
    HKP-02806
    $12.95
    Qty in Cart: 0
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    $12.95
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  • HKP MP5SD Sealing Ring - Enhanced

    HKP MP5SD Sealing Ring - Enhanced

    HKP HK Parts

    $9.95
    HKP MP5SD Sealing Ring - Enhanced The enhanced sealing ring is made from a newer, longer-lasting material as well as having a slightly thicker profile for secure sealing. The MP5SD sealing ring is the gasket that seals the SD suppressor against the...
    HKP-18053
    $9.95
    Qty in Cart: 0
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    $9.95
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  • HKP Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced HKP Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced

    HKP Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced

    HKP HK Parts

    $2.39
    HKP Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced New enhanced material for greater longevity and durability. Our US made recoil rod guides are the made from the strongest most durable material available much better than the basic nylon as...
    HKP-17829
    $2.39
    Qty in Cart: 0
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    $2.39
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  • On Sale
    H&K MP5 & HK94 Firing Pin Spring

    H&K MP5 & HK94 Firing Pin Spring

    H&K Heckler & Koch

    Now: $4.95
    Was: $9.95
    HK German MP5 & HK94 Firing Pin Spring Fits all of the MP5, SP5, SP5K, MP5K 9mm and 40/10 Variants including MP5, 94 clones.The firing pin is one of the most common repair and replacement items. Compatible With: MP5 SP5 SP5K MP5K 9mm & 40/10...
    HKP-00062
    Now: $4.95
    Was: $9.95
    Qty in Cart: 0
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    Now: $4.95
    Was: $9.95
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  • HKP HK Pistol Grip Parts Storage Holder HKP HK Pistol Grip Parts Storage Holder

    HKP HK Pistol Grip Parts Storage Holder

    HKP HK Parts

    $29.95
    HK Pistol Grip Parts Storage Holder - SEF & Ambidextrous Housings A must-have item for storage, it doesn't have a battery compartment to maximize storage. This HK grip plug will fit all SEF or Ambidextrous housings that have the holding tabs in the...
    HKP-19452
    $29.95
    Qty in Cart: 0
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    $29.95
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  • On Sale
    HKP MP5, MP5K, 94 & SP89 Firing Pin-Steel

    HKP MP5, MP5K, 94 & SP89 Firing Pin-Steel

    HKP HK Parts

    Now: $9.95
    Was: $17.47
    MP5, MP5K, 94, & SP89 Firing Pin - Steel Each part is made using the factory HK material and specifications from original HK German blueprints. Compatible With: MP5, HK94 MP5K, SP89, SP5K MP5 40, 10mm, .357 Sig Zenith, POF, Omega, DT,...
    HKP-02115
    Now: $9.95
    Was: $17.47
    Qty in Cart: 0
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    Now: $9.95
    Was: $17.47
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  • H&K Small Push Pin Replacement Spring H&K Small Push Pin Replacement Spring

    H&K Small Push Pin Replacement Spring

    H&K Heckler & Koch

    $1.95
    Replacement Spring for HK style push pin - Small  A must have replacement item to have on hand. A quick and easy install spring to get your push pins back to working condition. A great replacement for those worn out springs that come loose while in...
    HKP-20368
    $1.95
    Qty in Cart: 0
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    $1.95
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  • H&K MP5 & MP5K Firing Pin Spring

    H&K MP5 & MP5K Firing Pin Spring

    H&K Heckler & Koch

    $26.95
    H&K MP5 & MP5K Firing Pin Spring The latest firing pin spring features a stronger and more durable braided design, surpassing the standard non-braided spring in performance and longevity.  Compatible With: MP5, HK94, SP5 MP5K, SP5K,...
    HKP-00063
    $26.95
    Qty in Cart: 0
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    $26.95
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  • H&K MP5 & MP5K F Style Roller Retainer Plate - 3rd Gen H&K MP5 & MP5K F Style Roller Retainer Plate - 3rd Gen

    H&K MP5 & MP5K F Style Roller Retainer Plate - 3rd Gen

    H&K Heckler & Koch

    $14.95
    HK German "F" Style 3rd Gen Roller Retainer Plate This is the latest and greatest German design of roller retainer plates found in all of the latest production of HK German bolt heads. The MP5 F roller retainer plate fits true F-style bolt heads only...
    HKP-00069
    $14.95
    Qty in Cart: 0
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    $14.95
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  • H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin

    H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin

    H&K Heckler & Koch

    $39.95
    H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin - German Compatible With: MP5 HK94 MP5K SP89 SP5K 
    HKP-00061
    $39.95
    Qty in Cart: 0
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    $39.95
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  • HKP Cocking Tube End Cap-Steel HKP Cocking Tube End Cap-Steel

    HKP Cocking Tube End Cap-Steel

    HKP HK Parts

    $14.95
    Cocking Tube End Cap - Steel - US Made Manufactured from solid billet steel and finished in black in a nitride finish. Compatible With: All 90 series HK firearms and clones that use a triple frame/sight tower
    HKP-17580
    $14.95
    Qty in Cart: 0
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    $14.95
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  • Ejector Lever Axle Retaining Spring

    Ejector Lever Axle Retaining Spring

    USA

    $1.95
    Ejector Lever Axle Retaining Spring This is the perfect spring ring to replace your worn out ejector lever axle spring ring. Made to HK spec for the best US replacement part on the market. Replacement of the retaining spring clip is necessary to keep...
    HKP-20629
    $1.95
    Qty in Cart: 0
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    $1.95
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  • HK Recoil Rod Guide Ring For Recoil Rod Assemblies HK Recoil Rod Guide Ring For Recoil Rod Assemblies

    HK Recoil Rod Guide Ring For Recoil Rod Assemblies

    H&K Heckler & Koch

    $7.99
    HK Recoil Rod Guide Ring For Recoil Rod Assemblies This item is a high-wear item & is great to have as a spare part. Compatible With: HK MP5 HK 94 HK MP5K HK 91 HK G3 HK 93 HK 33 HK 53 HK 21 (not E guns) Other HK 90 Series Rifles & Pistols.
    HKP-00143
    $7.99
    Qty in Cart: 0
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    $7.99
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  • H&K MP5SD Sealing Ring

    H&K MP5SD Sealing Ring

    H&K Heckler & Koch

    $19.95
    H&K MP5SD Sealing Ring Each HK MP5SD sealing ring is the sealing gasket that seals the SD suppressor against the trunnion on factory HK MP5SD's or factory correct SD conversions. This is a typical wear item as they do degrade and crack. Compatible...
    HKP-00142
    $19.95
    Qty in Cart: 0
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    $19.95
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  • HKP MP5, MP5K, 94 & SP89 Firing Pin-Titanium

    HKP MP5, MP5K, 94 & SP89 Firing Pin-Titanium

    HKP HK Parts

    $49.95
    HKP MP5, MP5K, 94 & SP89 Firing Pin-Titanium Grade 6 Titanium firing pin. Each was made using the factory HK specifications from original HK German blueprints. This is the finest US made Titanium firing pin available anywhere, at any price. Built to...
    HKP-17601
    $49.95
    Qty in Cart: 0
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    $49.95
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  • H&K Rear Sight Bearing

    H&K Rear Sight Bearing

    H&K Heckler & Koch

    $1.99
    H&K Rear Sight Bearing Factory HK Part for all rear sight assemblies. This item is required for any HK diopter rear sight assemblies.
    HKP-00145
    $1.99
    Qty in Cart: 0
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    $1.99
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  • H&K HK MP5, MP5K Spare Parts Kit H&K HK MP5, MP5K Spare Parts Kit

    H&K HK MP5, MP5K Spare Parts Kit

    H&K Heckler & Koch

    $239.95
    H&K HK MP5, MP5K Spare Parts Kit HK MP5, HK SP5, HK94 & MP5K, SP89, SP5K Spare parts kits for the most commonly worn parts needed to keep your precious MP5/MP5K going. This offering also includes a pouch to safely store all your replacement parts...
    HKP-20619
    $239.95
    Qty in Cart: 0
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    $239.95
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  • Out Of Stock
    B&T HK MP5/MP5K Quick Detach Muzzle Brake - 3-Lug B&T HK MP5/MP5K Quick Detach Muzzle Brake - 3-Lug

    B&T HK MP5/MP5K Quick Detach Muzzle Brake - 3-Lug

    B&T Brugger & Thomet

    $139.95
    B&T HK MP5/MP5K Quick Detach Muzzle Brake - 3-Lug B&T has supplied products to L.E. & Military units the world over. This is new Swiss manufacture. Specifications: Diameter 31 mm Length 73 mm Steel QPQ Treated Quick Detach Compatible...
    HKP-16898
    $139.95
    Qty in Cart: 0
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    $139.95
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  • Out Of Stock
    HKP/H&K MP5 9mm Flash Hider - 3-Lug HKP/H&K MP5 9mm Flash Hider - 3-Lug

    HKP/H&K MP5 9mm Flash Hider - 3-Lug

    HKP HK Parts

    $99.95
    HKP/H&K MP5 9mm Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found on...
    HKP-17228
    $99.95
    Qty in Cart: 0
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    $99.95
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  • H&K Ambidextrous Sling Pin O-Ring

    H&K Ambidextrous Sling Pin O-Ring

    H&K Heckler & Koch

    $1.95
    H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...
    HKP-01090
    $1.95
    Qty in Cart: 0
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    $1.95
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  • HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28 HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28

    HKP HK SP5/K 9mm Thread Protector - Threaded 1/2x28

    HKP HK Parts

    $19.95
    HKP/H&K SP5/K 9mm Thread Protector - Threaded 1/2x28 An essential replacement thread protector for lost or damaged thread protectors & caps. This part is compatible with all factory specification SP5 barrels. Specifications: Made In The...
    HKP-21375
    $19.95
    Qty in Cart: 0
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    $19.95
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  • H&K -4 Roller For Bolt Head 7.96mm - Under-sized H&K -4 Roller For Bolt Head 7.96mm - Under-sized

    H&K -4 Roller For Bolt Head 7.96mm - Under-sized

    H&K Heckler & Koch

    $27.99
    H&K -4 Roller For Bolt Head 7.96mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -4 roller, each roller is priced per roller. Please Note: The price listed...
    HKP-00504
    $27.99
    Qty in Cart: 0
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    $27.99
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  • HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH

    HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH

    HKP HK Parts

    $26.95
    HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH Our new MP5 Micro Comp combines the classic appearance of a factory-style thread protector with enhanced functionality. Extended and slotted, this micro compensator not only preserves the factory...
    HKP-21176
    $26.95
    Qty in Cart: 0
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    $26.95
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  • H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    H&K SP5K 9mm Drop In Paddle Mag Release Upgrade Kit

    H&K Heckler & Koch

    $129.95
    German HK SP5K Anti-Rattle Roller Tipped Paddle Magazine Release Kit No modifications, no refinishing...complete drop-in kit included New HK German & USA made paddle mag release kit for the HK SP5K. This kit will allow any end-user to quickly...
    HKP-18082
    $129.95
    Qty in Cart: 0
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    $129.95
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